NDLI: Emission spectroscopy of the A1Π

Content Provider	Springer Nature Link
Author	Szajna, W. Zachwieja, M.
Copyright Year	2009
Abstract	The high-resolution emission spectrum of the A1 Π–X1Σ+ transition of AlH was observed in the 18 000–25 000 cm-1 spectral region using a conventional spectroscopic technique. The AlH molecules were excited in an Al hollow-cathode lamp filled with a mixture of Ne carried gas and a trace amount of NH3. The emission from the discharge was observed with a plane grating spectrograph and recorded by a photomultiplier tube. In total 163 transition wave numbers belonging to six bands (0-0,1 and 1-0,1,2,3) were precisely measured and rotationally analysed. In the final fit the present data have been combined with available high-resolution measurements of the vibration-rotation bands by White et al. [J. Chem. Phys. 99, 8371 (1993)]. This procedure enabled extracting molecular constants for the A1 Π and X1 Σ+ states of AlH. A very slight local perturbation has been discovered in the v=1 vibration level of the A1 Π state at J=5. This was probably caused by the interaction with the a3Π state.
Starting Page	549
Ending Page	555
Page Count	7
File Format	PDF
ISSN	14346060
Journal	The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics
Volume Number	55
Issue Number	3
e-ISSN	14346079
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-09-26
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nonlinear Dynamics Spectroscopy/Spectrometry Quantum Information Technology, Spintronics Quantum Physics Physical Chemistry Atomic, Molecular, Optical and Plasma Physics
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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